What are some examples of using streams in Java 8?

What are some examples of using streams in Java 8?

Java 8 streams allow you to process collections of objects in a functional style. For example, you can filter a list of integers to get only even numbers.

Can you show me a code snippet for filtering even numbers?

Sure! Here's a simple example:

List<Integer> numbers = Arrays.asList(1, 2, 3, 4, 5, 6);
List<Integer> evenNumbers = numbers.stream()
    .filter(n -> n % 2 == 0)
    .collect(Collectors.toList());
System.out.println(evenNumbers);

What about using streams for sorting a list?

You can sort a list using streams like this:

List<String> names = Arrays.asList("John", "Jane", "Adam");
List<String> sortedNames = names.stream()
    .sorted()
    .collect(Collectors.toList());
System.out.println(sortedNames);

Are there any performance benefits to using streams?

Yes, streams can improve performance by enabling parallel processing and reducing boilerplate code, making your code cleaner and more efficient.